Gravitational waves from Higgs domain walls

Gravitational waves from Higgs domain walls

The effective potential for the Standard Model Higgs field allows two quasi-degenerate vacua; one is our vacuum at the electroweak scale, while the other is at a much higher scale. The latter minimum may be at a scale much smaller than the Planck scale, if the potential is lifted by new physics. Thi...

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Main Authors: Naoya Kitajima, Fuminobu Takahashi
Format: Article
Language:English
Published: Elsevier 2015-05-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S037026931500283X
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spelling doaj-deb23a7ee6ab40acad90be0806fc3c5c2020-11-24T23:16:28ZengElsevierPhysics Letters B0370-26932015-05-01745112117Gravitational waves from Higgs domain wallsNaoya Kitajima0Fuminobu Takahashi1Department of Physics, Tohoku University, Sendai 980-8578, Japan; Corresponding author.Department of Physics, Tohoku University, Sendai 980-8578, Japan; Kavli IPMU, TODIAS, University of Tokyo, Kashiwa 277-8583, JapanThe effective potential for the Standard Model Higgs field allows two quasi-degenerate vacua; one is our vacuum at the electroweak scale, while the other is at a much higher scale. The latter minimum may be at a scale much smaller than the Planck scale, if the potential is lifted by new physics. This gives rise to a possibility of domain wall formation after inflation. If the high-scale minimum is a local minimum, domain walls are unstable and disappear through violent annihilation processes, producing a significant amount of gravitational waves. We estimate the amount of gravitational waves produced from unstable domain walls in the Higgs potential and discuss detectability with future experiments.http://www.sciencedirect.com/science/article/pii/S037026931500283X
collection DOAJ
language English
format Article
sources DOAJ
author Naoya Kitajima
Fuminobu Takahashi
spellingShingle Naoya Kitajima
Fuminobu Takahashi
Gravitational waves from Higgs domain walls
Physics Letters B
author_facet Naoya Kitajima
Fuminobu Takahashi
author_sort Naoya Kitajima
title Gravitational waves from Higgs domain walls
title_short Gravitational waves from Higgs domain walls
title_full Gravitational waves from Higgs domain walls
title_fullStr Gravitational waves from Higgs domain walls
title_full_unstemmed Gravitational waves from Higgs domain walls
title_sort gravitational waves from higgs domain walls
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2015-05-01
description The effective potential for the Standard Model Higgs field allows two quasi-degenerate vacua; one is our vacuum at the electroweak scale, while the other is at a much higher scale. The latter minimum may be at a scale much smaller than the Planck scale, if the potential is lifted by new physics. This gives rise to a possibility of domain wall formation after inflation. If the high-scale minimum is a local minimum, domain walls are unstable and disappear through violent annihilation processes, producing a significant amount of gravitational waves. We estimate the amount of gravitational waves produced from unstable domain walls in the Higgs potential and discuss detectability with future experiments.
url http://www.sciencedirect.com/science/article/pii/S037026931500283X
work_keys_str_mv AT naoyakitajima gravitationalwavesfromhiggsdomainwalls
AT fuminobutakahashi gravitationalwavesfromhiggsdomainwalls
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